Production method for adsorbent coupling chitosan and bamboo charcoal by dialdehyde

A technology for coupling chitosan with dibasic aldehyde and production method, which is applied in chemical instruments and methods, adsorption water/sewage treatment, other chemical processes, etc. , the effect of reducing CODcr
CN101940913AInactive Publication Date: 2011-01-12ZHEJIANG FORESTRY UNIVERSITY
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
ZHEJIANG FORESTRY UNIVERSITY
Publication Date
2011-01-12
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention relates to a production method for an adsorbent coupling chitosan and bamboo charcoal by dialdehyde. The method comprises the preparation of chitosan acid solution, the pretreatment of bamboo charcoal, the preparation of acid mixed solution of bamboo charcoal and chitosan, the preparation of a coupled reactant of chitosan and bamboo charcoal, and the preparation of the bamboo charcoal adsorbent coupled with chitosan. The invention relates to the production method for the adsorbent for domestic sewage treatment. Compared with bamboo charcoal and activated sludge applied to the domestic sewage treatment, the adsorbent prepared by the method has better effects of reducing CODcr, turbidity and ammonia nitrogen in the domestic sewage.
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Description

technical field

[0001] The invention relates to the technical field of sewage treatment, in particular to a preparation method of a domestic sewage treatment agent. Background technique

[0002] Chitosan and coupled chitosan have a good sewage purification ability due to their microscopic porous structure. However, chitosan has the disadvantages of easy loss and large dosage. Bamboo charcoal has developed pores, large specific surface area, strong adsorption capacity, and is relatively cheap, and is more used in sewage treatment. But the adsorption of bamboo charcoal has a saturation.

[0003] The invention utilizes the advantages of the two at the same time, and adopts a new method to organically combine the two to obtain a sewage treatment agent with better performance. Taking advantage of the high adsorption capacity of bamboo charcoal, adding a coupling agent to couple chitosan and bamboo charcoal into larger polymers, the acid and water solubility of chitosan after c...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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